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Graphene-basalt fiber composite material and preparation method thereof

A technology of basalt fiber and composite material, applied in the field of composite fiber, can solve the problems of poor surface performance of basalt fiber, difficult to bundle and surface modification, poor alkali resistance, etc., to achieve high interface adhesion strength, improved electrical conductivity, and large application effect of value

Inactive Publication Date: 2018-03-16
HANGZHOU GAOXI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the surface properties of basalt fiber are poor, brittle, difficult to bundle and surface modification, and because most of the composition is silica, the alkali resistance is not good, and the application in special environments is poor

Method used

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  • Graphene-basalt fiber composite material and preparation method thereof
  • Graphene-basalt fiber composite material and preparation method thereof
  • Graphene-basalt fiber composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] (1) Heat the basalt fiber in toluene to 250°C, ultrasonically clean for 10 minutes, remove the surface wetting agent and oil, and dry;

[0029] (2) Using an aqueous dispersion of graphene oxide to coat and dry the surface of the basalt fiber obtained in step (1) repeatedly, the number of cycles is 15 to obtain the basalt fiber coated with graphene oxide. The thickness of the graphene oxide layer is 3μm;

[0030] (3) Place the graphene oxide-coated basalt fiber obtained in step (2) in water for surface swelling, and then overlap the fibers to form a non-woven fabric after drying, and the drying temperature is lower than 100 degrees Celsius.

[0031] (4) The graphene oxide cross-linked basalt fiber obtained in step (3) is placed in a closed kettle containing hydrazine hydrate and reduced at 80° C. for 12 hours.

[0032] After the above steps, the graphene is coated on the surface of the basalt fiber, and the surface of the basalt fiber and the graphene sheet are connected by van ...

Embodiment 2

[0037] (1) Heat the basalt fiber in toluene to 250°C, ultrasonically clean for 10 minutes, remove the surface wetting agent and oil, and dry;

[0038] (2) Using graphene oxide dispersion in N,N-dimethylformamide to coat and dry the surface of the basalt fiber obtained in step (1) repeatedly, the number of cycles is 13 to obtain a graphene oxide coated surface Basalt fiber. The thickness of the graphene oxide layer is 3μm;

[0039] (3) Place the graphene oxide-coated basalt fiber obtained in step (2) in water for surface swelling, and then overlap the fibers to form a non-woven fabric after drying, and the drying temperature is lower than 100 degrees Celsius.

[0040] (4) The graphene oxide cross-linked basalt fiber obtained in step (3) is placed in a closed kettle containing hydrazine hydrate and reduced at 80° C. for 12 hours.

[0041] After the above steps, the graphene is coated on the surface of the basalt fiber, and the surface of the basalt fiber and the graphene sheet are conn...

Embodiment 3

[0043] (1) Heat the basalt fiber in toluene to 250°C, ultrasonically clean for 10 minutes, remove the surface wetting agent and oil, and dry;

[0044] (2) Using an ethanol dispersion of graphene oxide to coat and dry the surface of the basalt fiber obtained in step (1) repeatedly, the number of cycles is 16 to obtain the basalt fiber coated with graphene oxide. The thickness of the graphene oxide layer is 3μm;

[0045] (3) Place the graphene oxide-coated basalt fiber obtained in step (2) in water for surface swelling, and then overlap the fibers to form a non-woven fabric after drying, and the drying temperature is lower than 100 degrees Celsius.

[0046] (4) The graphene oxide cross-linked basalt fiber obtained in step (3) is placed in a closed kettle containing hydroiodic acid, and reduced at 90°C for 18 hours.

[0047] After the above steps, the graphene is coated on the surface of the basalt fiber, and the surface of the basalt fiber and the graphene sheet are connected by van der...

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Abstract

The invention discloses a graphene-basalt fiber composite material and a preparation method thereof. The cross-linking of the basalt fiber can be achieved by utilizing the swelling and fusion effectsof graphene oxide coating on the surface of the basalt fiber. The graphene oxide is taken as a sizing agent and a cross-linking agent, the basalt fiber can be evenly coated with the grapheme oxide, the cross-linking process is fast and easy, and the cross-linking intensity is high. After further deoxidization, a grapheme oxide cross-linking layer converts into a graphene cross-linking layer, the interaction between the basalt fibers is enhanced, the contact resistance between fibers is decreased, so that the basalt fiber demonstrates excellent mechanical property and electric and thermal conductivity, which can be used for reinforcement phase of the composite material and differentiated fiber application. The method of cross-linking the basalt fiber with the graphene is of great research value and extensive application prospect.

Description

Technical field [0001] The invention belongs to the field of composite fibers, and in particular relates to a graphene-basalt fiber composite material and a preparation method thereof. Background technique [0002] Basalt fiber is a new type of inorganic environmentally friendly green high-performance fiber material. It is a basalt rock material composed of oxides such as silica, alumina, calcium oxide, magnesium oxide, iron oxide, and titanium dioxide. Drawn. Compared with glass fiber, basalt fiber not only has a series of excellent properties such as high mechanical strength, low thermal conductivity, temperature resistance, acid and alkali resistance, heat insulation, sound insulation, electrical insulation, safety and non-toxicity, and light weight. Special temperature range (-260~700℃). In addition, the production process of basalt fiber determines that there is less waste generated, and environmental pollution is small, and the product can be directly degraded in the envi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D04H1/4382C03B37/005C03C25/10C03C25/24C03C25/44
CPCD04H1/4382C03B37/005C03C25/1095C03C25/24C03C25/44
Inventor 高超陈琛韩燚李拯
Owner HANGZHOU GAOXI TECH CO LTD
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